| /* read PCAP file with meas_feed data and write it to sqlite3 database */ |
| |
| /* (C) 2012 by Harald Welte <laforge@gnumonks.org> |
| * |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #include <string.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| |
| #include <netinet/in.h> |
| #include <netinet/ip.h> |
| #include <netinet/udp.h> |
| |
| #include <osmocom/core/socket.h> |
| #include <osmocom/core/utils.h> |
| #include <osmocom/core/select.h> |
| #include <osmocom/core/talloc.h> |
| |
| #include <osmocom/gsm/gsm_utils.h> |
| |
| #include <openbsc/meas_feed.h> |
| |
| #include <pcap/pcap.h> |
| |
| #include "meas_db.h" |
| |
| static struct meas_db_state *db; |
| |
| static void handle_mfm(const struct pcap_pkthdr *h, |
| const struct meas_feed_meas *mfm) |
| { |
| const char *scenario; |
| |
| if (strlen(mfm->scenario)) |
| scenario = mfm->scenario; |
| else |
| scenario = NULL; |
| |
| meas_db_insert(db, mfm->imsi, mfm->name, h->ts.tv_sec, |
| scenario, &mfm->mr); |
| } |
| |
| static void pcap_cb(u_char *user, const struct pcap_pkthdr *h, |
| const u_char *bytes) |
| { |
| const char *cur = bytes; |
| const struct iphdr *ip; |
| const struct udphdr *udp; |
| const struct meas_feed_meas *mfm; |
| uint16_t udplen; |
| |
| if (h->caplen < 14+20+8) |
| return; |
| |
| /* Check if there is IPv4 in the Ethernet */ |
| if (cur[12] != 0x08 || cur[13] != 0x00) |
| return; |
| |
| cur += 14; /* ethernet header */ |
| ip = (struct iphdr *) cur; |
| |
| if (ip->version != 4) |
| return; |
| cur += ip->ihl * 4; |
| |
| if (ip->protocol != IPPROTO_UDP) |
| return; |
| |
| udp = (struct udphdr *) cur; |
| |
| if (udp->dest != htons(8888)) |
| return; |
| |
| udplen = ntohs(udp->len); |
| if (udplen != sizeof(*udp) + sizeof(*mfm)) |
| return; |
| cur += sizeof(*udp); |
| |
| mfm = (const struct meas_feed_meas *) cur; |
| |
| handle_mfm(h, mfm); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| char errbuf[PCAP_ERRBUF_SIZE+1]; |
| char *pcap_fname, *db_fname; |
| pcap_t *pc; |
| int rc; |
| |
| if (argc < 3) { |
| fprintf(stderr, "You need to specify PCAP and database file\n"); |
| exit(2); |
| } |
| |
| pcap_fname = argv[1]; |
| db_fname = argv[2]; |
| |
| pc = pcap_open_offline(pcap_fname, errbuf); |
| if (!pc) { |
| fprintf(stderr, "Cannot open %s: %s\n", pcap_fname, errbuf); |
| exit(1); |
| } |
| |
| db = meas_db_open(NULL, db_fname); |
| if (!db) |
| exit(0); |
| |
| rc = meas_db_begin(db); |
| if (rc < 0) { |
| fprintf(stderr, "Error during BEGIN\n"); |
| exit(1); |
| } |
| |
| pcap_loop(pc, 0 , pcap_cb, NULL); |
| |
| meas_db_commit(db); |
| |
| exit(0); |
| } |